Mnet's 'M! Countdown' is back for its weekly show featuring performances by your favorite artists!

On this week's episode, IRRIS debuted with "Wanna Know", ENHYPEN made a comeback with "Future Perfect (Pass the MIC)", VIVIZ came back with "LOVEADE", Cosmic Girls returned with "Last Sequence", WINNER came back with "I Love U", Rothy returned with "Changed Number", MCND made a comeback with "#MOOD", H1-KEY made a comeback with "Run", and Park Hyeon Seo returned with "Sparkling Rain".

As for the winners, TWICE and fromis_9 were the nominees, but it was fromis_9 who took the win with "Stay This Way". Congratulations to fromis_9!

Performers included fromis_9, HUTA, Sunmi, XG, TAN, Lapillus, DAWN, and DRIPPIN.

Watch the performances below!

WINNER:

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DEBUT: IRRIS

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COMEBACK: ENHYPEN

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COMEBACK: VIVIZ

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COMEBACK: Cosmic Girls

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COMEBACK: WINNER

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COMEBACK: Rothy

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COMEBACK: MCND

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COMEBACK: H1-KEY

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COMEBACK: Park Hyeon Seo

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fromis_9

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HUTA

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Sunmi

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XG

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TAN

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Lapillus

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DAWN

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DRIPPIN

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